10121240 has 32 divisors (see below), whose sum is σ = 22865760. Its totient is φ = 4032000.

The previous prime is 10121233. The next prime is 10121257. The reversal of 10121240 is 4212101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15725 + ... + 16355.

It is an arithmetic number, because the mean of its divisors is an integer number (714555).

Almost surely, 2^10121240 is an apocalyptic number.

10121240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10121240 is an abundant number, since it is smaller than the sum of its proper divisors (12744520).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10121240 is a wasteful number, since it uses less digits than its factorization.

10121240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1043 (or 1039 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 10121240 is about 3181.3896334778. The cubic root of 10121240 is about 216.3106526829.

Adding to 10121240 its reverse (4212101), we get a palindrome (14333341).

The spelling of 10121240 in words is "ten million, one hundred twenty-one thousand, two hundred forty".